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Our take on the Mobile Fidelity StudioPhono™
by Crutchfield's Eric Angevine

To enjoy vinyl, you need your phono preamp to cleanly boost and equalize the signal coming from your turntable's tonearm. This beautiful phono stage from Mobile Fidelity lets you adjust input impedance, capacitance, and gain to perfectly match just about any moving magnet or moving coil turntable cartridge you prefer. That means you're in control, so you can get maximum warmth and detail out of every record you own.

An adjustable preamp for analog audiophiles

To enjoy vinyl, you need your phono preamp to cleanly boost and equalize the signal coming from your turntable's tonearm. This beautiful phono stage from Mobile Fidelity lets you adjust input impedance, capacitance, and gain to perfectly match just about any moving magnet or moving coil turntable cartridge you prefer. That means you're in control, so you can get maximum warmth and detail out of every record you own.

Make the most of any turntable rig

If you use your StudioPhono with Mobile Fidelity's excellent StudioDeck turntable, you can use the preamp straight out of the box with no tweaking required.

On the other hand, if you have, say, the Pro-Ject Debut Carbon, which comes with an Ortofon 2M Red moving magnet cartridge pre-mounted, you'll want to make a few changes to your settings. Pro-Ject recommends that you set input impedance at 47k and input gain at 40dB. You'll find 12 dip switches on the underside of the preamp that allow you to make those adjustments quickly.

Then, if you upgrade your system in the future, the StudioPhono is ready to match up with your next 'table and cartridge.

Need a cable?

This phono preamp does not come with an RCA cable to connect to your receiver or amp.

Product Highlights:

compatible with moving magnet and moving coil phono cartridges

vibration-resistant metal casing

match preamp settings to your cartridge to get the best possible sound

Mobile Fidelity StudioPhono™ Reviews

Mobile Fidelity Studio Phono

I purchased this to replace another phono stage that was giving me RFI issues. So far I am really liking this and it seems to be much quieter in my system than my previous stage. At this point I have tested it with two different MM cartridges and it sounds very nice with both, though depending on what cartridges you are using you may want to consider fine tuning the resistive and capacitance loading with a set of loading plugs. The overall sound is nice and clear, not as laid back and overly polite as some brands, though not as detailed and sharp edged as others. I suppose that's what many would consider a happy medium. The built-in subsonic filter is very useful and does its job, and my mono LPs have never sounded better now that I can listen to them in mono properly.

Hands-on research

Product Research

Features

Phono Preamp (MM/MC): The MoFi StudioPhono is a phono preamp that has
been engineered to work with a wide array of Moving Magnet (MM) and Moving Coil
(MC) phono cartridges. The StudioPhono is
factory set to operate with most high-output moving magnet (MM) and moving
coil (MC) phono cartridges. If you are using a low-output moving coil (MC)
cartridge, you will need to adjust the phono preamplifier's settings for best
results.

Adjustable Gain & Loading: With selectable gain
and loading, you will be able to tailor the MoFi StudioPhono to match nearly any
moving-magnet (MM) or moving-coil (MC) cartridge on the market. A readily
accessible bank of toggle switches can be found on the unit's underside to
quickly make adjustments without the need for any tools.

Mono & Subsonic Filters: Two selectable toggle buttons on
the top of the unit can engage a Mono or Subsonic filter mode. The Mono mode
will improve image stability and generate a richer tone for mono-recorded vinyl.
The Subsonic filter controls low frequencies below 20Hz preventing ultra low
rumble.

Stereo RCA Input & Output: The MoFi StudioPhono is outfitted with
a gold-plated stereo RCA input and output. The input connects to your turntable's
output, while the output connects to an analog input on your AV receiver, stereo
receiver, or integrated amplifier.

External Power Supply: The included external power supply will need to
be plugged into an AC wall outlet, surge protector, or power conditioner.

Placement: The StudioPhono will operate at its best when properly
installed in a location that's free from magnetic fields like those generated by
equipment with power transformers (such as an amplifier), and within a
reasonable distance between your turntable and audio component(s).

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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Q & A

Customer Q&A

Crutchfield askedWhy did you buy this?

Recommendation from adviser, and the fact that it has the subsonic filter.
[ Alexander Dec 12, 2017 ]

Sparse reviews, but what I have seen so far very favorable so taking a shot on this one.
[ Wayne Sep 30, 2017 ]